EP2783378A1 - Schalter fuer gleichstrombetrieb mit mindestens einer schaltkammer - Google Patents
Schalter fuer gleichstrombetrieb mit mindestens einer schaltkammerInfo
- Publication number
- EP2783378A1 EP2783378A1 EP12790577.6A EP12790577A EP2783378A1 EP 2783378 A1 EP2783378 A1 EP 2783378A1 EP 12790577 A EP12790577 A EP 12790577A EP 2783378 A1 EP2783378 A1 EP 2783378A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching
- switch
- contact
- switch according
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/546—Contact arrangements for contactors having bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
- H01H71/0271—Mounting several complete assembled circuit breakers together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/1009—Interconnected mechanisms
- H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
Definitions
- the invention relates to a switch, which is provided in particular for a DC operation, comprising at least one switching chamber, wherein each switching chamber has two switching pieces each having a first contact region, one with a
- Switching bridge movable and electrically conductive bridge switching piece with two second contact areas for producing an electrically conductive connection between the first and second contact areas and for separating at least one of the second contact areas of the respective first contact area, and at least two magnets for generating a magnetic field.
- Electrical switches are components in a circuit that establish or disconnect an electrically conductive connection by means of internal, electrically conductive contacts. With a live connection to be cut, current flows through the contacts until they are separated. When an inductive circuit is disconnected by a switch, the current flow does not reduce immediately to zero, so that an arc can form between the contacts.
- the arc is a gas discharge by a per se non-conductive medium, such as air. Clear in AC-powered switches
- Arcs usually at the zero crossing of the alternating current. Since such a zero crossing of the current in switches with DC operation (DC) is missing, stable arcing can occur when disconnecting the contacts. If the circuit is operated with sufficient current and voltage, for example, more than about one ampere and more than 50 volts, the arc does not automatically go out. For this reason, in such switches, the extinction of the arc is accelerated by the use of a magnetic field that is poled to exert a driving force on the arc toward a quenching chamber. To generate a strong magnetic field are usually permanent magnets used. The driving force of the magnetic field in the direction of
- Extinguishing chambers is given only in a certain current flow direction.
- the extinguishing chambers which serve to extinguish the arc, are intended to keep the period during which the arc burns as short as possible, since the arc releases a large amount of heat, which is used to burn off the contacts and / or the thermal load Switching chamber leads in the switch and thus reduces the life of the switch.
- the space requirement for switches with corresponding extinguishing chambers, especially for non-polarity switch is significant. In two- or multi-pole switches correspondingly higher amounts of heat are released by arcs than in single-pole switches, which in turn requires larger switch housing with higher space requirements.
- An object of the invention is to provide a switch with a fast and reliable erase behavior of resulting Ausschaltlichtbögen available, the space requirement of the amount of heat released is adjusted, without thereby increasing the variety of parts of the switch housing is increased.
- the switch according to the invention should in particular be suitable for a DC operation, have one or more switching chambers and preferably be designed to be double-interrupting and / or polarity-independent.
- Switching chamber comprises two contact pieces each having a first contact region and a bridge bridge movable with an electrically conductive bridge and switching piece.
- About the bridge contact piece is an electrically conductive connection between the first and second contact areas produced, wherein a easy interrupting switch is separable only via one of the contact pairs of the first and second contact region, while the other contact pair remains permanently connected, for example via a strand.
- the two second contact areas are separated from the respective first contact area.
- each chamber has at least two magnets, in particular permanent magnets.
- a modular construction of the switch wherein the switch is provided with only one switching chamber for a single-pole operation and can be extended by adding at least one second switching chamber for a multi-pole operation.
- the space requirement of the switch of the amount of heat produced can be adjusted by Ausschaltlichtbögen.
- the modular construction advantageously allows uniform switching chamber components to be used to produce single or multi-pole switches.
- a preferred embodiment relates to a two-pole operation of the switch, wherein two switching chambers are connected to each other such that their respective opening sides are facing each other. Also preferably, the switching chambers for a two-pole operation by a plate against each other are electrically isolated, the plate is used in a single-pole operation as a cover of the individual switching chamber housing.
- the two switching chambers preferably have a common switching bridge for moving the bridge switching pieces.
- an additional magnet for influencing the magnetic field is arranged on the movable switching bridge for each switching chamber.
- An advantage of this additional magnet is that the magnetic field in the region of the first and second contact regions is particularly well influenced, since the additional magnet passes through the movement of the switching bridge in the immediate vicinity of the first and second contact areas. In particular, the field strength of the magnetic field in this area is significantly increased by the additional magnet, which advantageously accelerates quenching of Arc allowed.
- the additional magnet is preferably arranged in a recess in the movable switching bridge in height of the contact areas.
- the magnetic field is used to exert a magnetic force on the arc or arcs, so that at least one of the arcs, preferably independently of the current direction in the arc, is driven in the direction of one of the extinguishing devices, wherein the contact pieces of the switching chambers are arranged so that the second contact areas are located in a line substantially perpendicular to the direction of movement of the arcs.
- the additional magnet is movable to amplify the magnetic field strength with the switching bridge in a region of the separable first and second contact areas.
- the auxiliary magnet is movable in close proximity to the region of the first and second contact regions, not between the first and second contact regions.
- the at least two magnets are, for example, at least twice as far away from the first and second contact regions as the additional magnet.
- the at least two magnets can in particular be arranged outside the switching chamber or in the region of the switching chamber wall, also on the inside of the switching chamber wall, preferably in an insulating pocket.
- the magnets are preferably designed as at least two plate-shaped magnets whose surfaces are arranged parallel to each other.
- At least two extinguishing devices are provided per switching chamber or contact pair for extinguishing arcing, which can occur during separation of the first and second contact regions.
- Particularly preferably four erasing devices are provided for polarity-independent erasing of the arcs.
- the first extinguishing devices are provided per switching chamber or contact pair for extinguishing arcing, which can occur during separation of the first and second contact regions.
- Particularly preferably four erasing devices are provided for polarity-independent erasing of the arcs.
- Arc conductors extend from the first contact regions and second arc conductors extend from the second contact regions toward the extinguishing devices, wherein a distance of the first arc conductor from the second Arc conductors are particularly preferably increased in the direction of the extinguishing devices.
- each bridge switching piece extends in a direction transversely, in particular approximately at right angles, to an extension direction of the switching pieces. Transverse to a direction is to be understood in the sense not parallel to the direction.
- the switching pieces are designed for multi-pole operation such that the terminals of the switch with respect to their position and / or installation position correspond to a multi-pole AC switch.
- a faulty sound due to an unfamiliar position of the connections in DC switches over the AC switches used much more often over a long time is thereby advantageously avoided.
- Figure 1 is a perspective view of an embodiment of a switch according to the invention.
- Figure 2 is an exploded view of the switch of Figure 1;
- FIGS. 3a and 3b show two perspective views of a detail of the switch according to FIG. 1.
- the embodiment according to Figure 1 shows a switch according to the invention, in particular a multi-pole, independent of the current direction compact switch according to the invention in a switching operation to show an efficient quenching behavior by the shortest possible arc time.
- the Connections of the main current paths or contact pieces 10a, 20a are arranged opposite to each other at the same level, relative to the installation depth of the switch, as in the case of a commercially available AC contactor.
- the opposing contact pieces 10b, 20b are arranged in the figure 1 behind the switch and therefore only in the other figures 2 and 3 a and 3b recognizable.
- the switch is designed in the form of two overlapping switch chambers 41a, 41b of preferably identical construction, which makes it possible in particular to realize a single-pole switch with only one switching chamber 41b or expand this modular, by adding a further switching chamber 41a, to a two-pole switch.
- the switching arrangements for each pole are accommodated in two separate, identical switching chambers 41a, 41b, which are arranged one above the other.
- the switching chambers 41a, 41b are mounted with their opening sides facing each other.
- the two switching chambers 41a, 41b are sealed off from each other by a partition 43 made of insulating material. In this way, a cost-effective solution is realized with compact installation conditions.
- the partition wall 43 is designed as a cover, the switch according to the invention can also be of modular construction, optionally with only one switching chamber 41b or two-pole with both switching chambers 41a, 41b.
- the first pole or the first switching chamber 41a has two contact pieces 10a, 10b, each having a first contact region 11 and a bridge bridge 30 movable and electrically conductive Brückenschalt choir 30 with two second contact areas 31 for producing an electrically conductive connection between the first and second contact areas 11, 31 and for separating the second contact areas 31 from the respective first contact area 11.
- the second switching chamber 41b has two switching pieces 20a, 20b, respectively a first contact area 21.
- Contact areas 31 is identical to the first switching chamber 41a and therefore also designated.
- the movable bridge switching pieces 30 of both poles are in this case arranged one above the other at the common switching bridge 35, whereby a synchronized switching process is realized for both poles.
- the first and second contact areas 11, 31 and 21, 31 are also referred to below as fixed contact areas 11, 21 and movable contact areas 31, which form contact pairs.
- the pairs of contacts each have two opposite, preferably identical extinguishing devices 61, 62.
- the extinguishing devices are preferably designed as so-called Deion chambers, which consist of a stack arrangement of mutually electrically insulated sheets 66 each having an air gap between two adjacent sheets.
- the extinguishing devices 61, 62 are each extended to runner-shaped angled second arc conductors or arc runners 32, wherein the outgoing ends of the bridge in the off case, point approximately in the direction of the outer edges 65 of the extinguishing devices.
- the movable contact areas 31 are located in each case at the intersection between the bridge switching piece 30, which are rotated by approximately 90 degrees against the connecting axis of two opposing extinguishing devices 61, 62, and from there perpendicularly outgoing arc running plates 32nd
- FIGS. 3a and 3b show two perspective views of the switch according to FIG Figure 1, but without chamber walls of the switching chambers 41a, 41b, shown.
- the perspective in Figure 3a corresponds to that of Figure 1, while Figure 3b shows a rotated by 90 degrees perspective.
- the contact pieces 10a, 10b, 20a, 20b are designed differently with the fixed contact areas 11, 21 for the two poles of the switch, which will be described in addition with reference to FIGS. 3a and 3b.
- the two contact piece carriers 10 a, 10 b respectively parallel to the longer chamber wall at the lower end of the switching chamber 41 a in this, wherein the one contact piece 10 a immediately behind the inner chamber wall by 90 degrees in a direction parallel to the short side of the switching chamber 41a is angled to be bent again just before reaching the lateral chamber wall by 90 degrees in a direction parallel to a chamber bottom or the partition wall 43.
- a parallel offset of the two contact pieces 10a, 10b is achieved, in such a way that both are aligned in parallel to each other current paths in the direction of the longer chamber side.
- the switching pieces 20a, 20b are designed in a similar manner, but with the difference that both switching pieces 20a, 20b immediately after entry into the switching chamber 41b initially at right angles in a direction parallel to the short side of the switching chamber 41st b are angled so that they run towards the bottom of the chamber.
- the one switching piece 20a is then again by 90 degrees in the direction parallel to the short Angled chamber wall to be angled in front of the chamber wall again at right angles in the direction parallel to the chamber bottom. In this way, the switching piece 20a is guided parallel to the longitudinal-side chamber wall analogously to the switching chamber 41a of the first pole along the chamber bottom.
- the second switching piece 20b is again bent at right angles in the region of the chamber bottom in such a way that it is parallel to the first contact piece along the chamber bottom.
- the two switching pieces 20a, 20b extend from the switching chamber wall initially below the extinguishing devices 61, 62. Outside the same, they are angled obliquely upward again, so that the two fixed contact areas 21 at the level of the center of the extinguishing devices 61st , 62 are arranged.
- a switch is realized with an optimized arc running behavior, in such a way that the resulting switching arcs are directed under the action of magnetic Blasfelder within very short times targeted in the direction of one of the extinguishing device 61, 62. Due to the special design of the contact pieces 10a, 10b, 20a, 20b is further achieved that the connections of the main current paths are arranged with respect to position and depth as in a multi-pole AC switch.
- an arrangement of in each case at least two permanent magnets 51a, 51b and an additional magnet 51c is arranged in each of the two switching chambers 41a, 41b in the illustrated embodiment.
- the two magnets 51a, 51b can be arranged, for example, outside the switching chambers 41a, 41b, while the additional magnet 51c for influencing the magnetic field is arranged on the movable switching bridge 35, preferably in each case at the level of the movable contact regions 31.
- the bridge switching pieces 30 angled on both sides trapezoidal.
- the permanent magnetic arrangement Due to the effective Lorentz force, the permanent magnetic arrangement causes the partial arcs that arise when the contacts are opened to be independent of the direction of flow always in the direction of two of the four total extinguishing devices 61, 62 are moved and extinguished there.
- Additional magnets 51 c directly in the region of the switching contacts allows the generation of a homogeneous magnetic field of high magnetic field strength, which allows due to its blowing effect a rapid movement of the arc in the direction of the respective extinguishing device 61, 62 and thus a comparatively short residence time of the arc between the contact areas 11, 31 and 21, 31 result, which advantageously reduces the erosion of the contacts and the
- the permanent magnets 51a, 51b and 51c are preferably made of ferritic material and / or of rare earth materials such as Nd-Fe-B or Sa-Co and / or of materials which allow the formation of plastic-bonded moldings.
- the switching chamber housing are preferably made of ceramic or thermosetting plastic and divided into four bays separated by bulkheads, each carrying on one outer exhaust openings.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12790577.6A EP2783378B1 (de) | 2011-11-24 | 2012-11-26 | Schaltanordnung fuer gleichstrombetrieb mit mindestens einer schaltkammer |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11190517.0A EP2597665A1 (de) | 2011-11-24 | 2011-11-24 | Schalter für Gleichstrombetrieb mit mindestens einer Schaltkammer |
EP12790577.6A EP2783378B1 (de) | 2011-11-24 | 2012-11-26 | Schaltanordnung fuer gleichstrombetrieb mit mindestens einer schaltkammer |
PCT/EP2012/073646 WO2013076310A1 (de) | 2011-11-24 | 2012-11-26 | Schalter fuer gleichstrombetrieb mit mindestens einer schaltkammer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2783378A1 true EP2783378A1 (de) | 2014-10-01 |
EP2783378B1 EP2783378B1 (de) | 2017-05-31 |
Family
ID=47221438
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11190517.0A Withdrawn EP2597665A1 (de) | 2011-11-24 | 2011-11-24 | Schalter für Gleichstrombetrieb mit mindestens einer Schaltkammer |
EP12790577.6A Active EP2783378B1 (de) | 2011-11-24 | 2012-11-26 | Schaltanordnung fuer gleichstrombetrieb mit mindestens einer schaltkammer |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11190517.0A Withdrawn EP2597665A1 (de) | 2011-11-24 | 2011-11-24 | Schalter für Gleichstrombetrieb mit mindestens einer Schaltkammer |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140284310A1 (de) |
EP (2) | EP2597665A1 (de) |
WO (1) | WO2013076310A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9129761B2 (en) | 2012-12-20 | 2015-09-08 | Eaton Electrical Ip Gmbh & Co. Kg | Switching device suitable for direct current operation |
FR3014595B1 (fr) * | 2013-12-09 | 2016-02-05 | Schneider Electric Ind Sas | Dispositif de commutation electrique |
DE102014107950B4 (de) * | 2014-06-05 | 2022-02-03 | Wago Verwaltungsgesellschaft Mbh | Steckverbinderanordnung und Löseelement hierzu |
US9530593B1 (en) * | 2015-08-19 | 2016-12-27 | Carling Technologies, Inc. | Electromagnetically assisted arc quench with pivoting permanent magnet |
EP3144950B1 (de) * | 2016-06-10 | 2018-12-26 | Gorlan Team, S.L.U. | Verfahren und vorrichtung zum abschneiden eines elektrischen stromes mit dynamischer magnetischer blaseinrichtung |
FR3089702B1 (fr) * | 2018-12-11 | 2020-12-25 | Schneider Electric Ind Sas | Support préfabriqué pour un dispositif électrique montable sur baie et dispositif électrique comportant un tel support |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1236628B (de) * | 1961-05-17 | 1967-03-16 | Bbc Brown Boveri & Cie | Elektrischer Schalter, insbesondere Schuetz |
US3806849A (en) * | 1973-06-18 | 1974-04-23 | Gen Electric | Small definite purpose contactor |
US4282414A (en) * | 1979-08-30 | 1981-08-04 | Westinghouse Electric Corp. | Convertible switch operator |
JPS5713628A (en) * | 1980-06-27 | 1982-01-23 | Mitsubishi Electric Corp | Direct current electromagnetic contactor |
DE3146780C2 (de) * | 1981-11-25 | 1985-10-24 | Siemens AG, 1000 Berlin und 8000 München | Mehrfachkontaktanordnung |
DE9422029U1 (de) * | 1993-03-17 | 1997-09-18 | Ellenberger & Poensgen GmbH, 90518 Altdorf | Mehrpoliger Schutzschalter |
JP2965025B1 (ja) * | 1998-04-07 | 1999-10-18 | 富士電機株式会社 | 回路遮断器 |
JP4009892B2 (ja) * | 2000-02-07 | 2007-11-21 | 富士電機機器制御株式会社 | 回路遮断器の接触子装置 |
US6816353B2 (en) * | 2000-11-20 | 2004-11-09 | General Electric Company | Electronic actuation for mechanically held contactors |
US6880226B2 (en) * | 2001-06-29 | 2005-04-19 | General Electric Company | Method for limiting movement in electrical contactors |
US7551050B2 (en) * | 2006-09-22 | 2009-06-23 | Rockwell Automation Technologies, Inc. | Contactor assembly with arc steering system |
DE102007054958A1 (de) | 2007-11-17 | 2009-06-04 | Moeller Gmbh | Schaltgerät für Gleichstrom-Anwendungen |
JP5084779B2 (ja) * | 2008-11-27 | 2012-11-28 | 東京エレクトロン株式会社 | プラグインユニット |
EP2463879A1 (de) * | 2010-12-07 | 2012-06-13 | Eaton Industries GmbH | Schalter mit Löschkammer |
EP2463877A1 (de) * | 2010-12-07 | 2012-06-13 | Eaton Industries GmbH | Schalter mit Löschkammer |
-
2011
- 2011-11-24 EP EP11190517.0A patent/EP2597665A1/de not_active Withdrawn
-
2012
- 2012-11-26 WO PCT/EP2012/073646 patent/WO2013076310A1/de active Application Filing
- 2012-11-26 US US14/359,915 patent/US20140284310A1/en not_active Abandoned
- 2012-11-26 EP EP12790577.6A patent/EP2783378B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2013076310A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20140284310A1 (en) | 2014-09-25 |
EP2597665A1 (de) | 2013-05-29 |
EP2783378B1 (de) | 2017-05-31 |
WO2013076310A1 (de) | 2013-05-30 |
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